Home / 21,406,647.60-29,535,580.80-12,706,761.60

Finding the Fourth Proportional to 21,406,647.60, 29,535,580.80 and 12,706,761.60

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Solution

The fourth proportional to 21,406,647.60, 29,535,580.80 and 12,706,761.60 is: 17,532,011.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406,647.60 : 29,535,580.80 = 12,706,761.60 : x
  2. Step 2: Convert to fraction form
    21,406,647.60/29,535,580.80 = 12,706,761.60/x
  3. Step 3: Cross multiply
    21,406,647.60x = 29,535,580.80 × 12,706,761.60
  4. Step 4: Simplify right side
    21,406,647.60x = 375,301,583,943,137.25
  5. Step 5: Solve for x
    x = 375,301,583,943,137.25/21,406,647.60
  6. Step 6: Final answer
    x = 17,532,011.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.